System event filtering and notification for OPC clients
OwnerJohn M. Prall, Haur J. Lin +1inventors
InventorsJohn M. Prall, Haur J. Lin, Jason T. Urso
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Abstract
A system operating in a Windows environment that provides notification of events to OPC clients is disclosed. NT events generated in the system are filtered and converted to an OPC format for presentation to the OPC clients. The converted NT event notification includes a designation of the source that generated the NT event. The system includes a filter configuration tool that permits entry of user-defined filter criteria and transformation information. The transformation information includes the source designation, event severity, event type (simple, tracking and conditional), event category, event condition, event sub-condition and event attributes.
Claims56
A method of notification of OPC alarms and events (OPC-AEs) and NT alarms and events (NT-AEs) to an OPC client comprising:
- converting an NT-AE notification of an NT-AE to an OPC-AE notification;
- and
- presenting said OPC-AE notification to said OPC client.
A device for notification of OPC alarms and events (OPC-AEs) and NT alarms and events (NT-AEs) to an OPC client, said device comprising:
- a system event provider that links an NT-AE notification of an NT-AE to additional information;
- and
- a system event server that packages said NT-AE notification and said additional information as an OPC-AE notification for presentation to said OPC client.
A method for populating a filter that filters NT alarms and events (NT-AEs) for conversion to OPC alarms and events comprising:
- entering NT-AEs for which notifications thereof are to be passed by said filter;
- and
- configuring said entered NT-AEs with one or more event characteristics selected from the group consisting of:
- event type, event source, event severity, event category, event condition, event sub-condition and event attributes.
A configurator that populates a filter that filters NT alarms and events (NT-AEs) for conversion to OPC alarms and events comprising:
- a configuration device that provides for entry into said filter of NT-AEs for which notifications thereof are to be passed by said filter and configuration of said entered NT-AEs with one or more event characteristics selected from the group consisting of:
- event type, event source, event severity, event category, event condition, event sub-condition and event attributes.
Dependencies are inferred from the claim text.